package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.constant.ProductConstant;
import com.atguigu.gulimall.product.dao.AttrAttrgroupRelationDao;
import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.dao.CategoryDao;
import com.atguigu.gulimall.product.entity.AttrAttrgroupRelationEntity;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.entity.CategoryEntity;
import com.atguigu.gulimall.product.service.CategoryService;
import com.atguigu.gulimall.product.vo.AttrGroupRelationVo;
import com.atguigu.gulimall.product.vo.AttrRespVo;
import com.atguigu.gulimall.product.vo.AttrVo;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrDao;
import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {


    @Autowired
    CategoryService categoryService;

    @Autowired
    AttrAttrgroupRelationDao relationDao;

    @Autowired
    AttrGroupDao attrGroupDao;

    @Autowired
    CategoryDao categoryDao;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveAttr(AttrVo attrVo) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attrVo,attrEntity);
        //1.保证基本数据
        this.save(attrEntity);
        //2.保存关联关系
        if (attrVo.getAttrType()== ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()&&attrVo.getAttrGroupId()!=null){
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attrVo.getAttrGroupId());
            relationEntity.setAttrId(attrEntity.getAttrId());
            relationEntity.setAttrSort(0);
            relationDao.insert(relationEntity);
        }

    }

    @Override
    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String type) {
        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>().eq("attr_Type","base".equalsIgnoreCase(type)?ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());
        if (catelogId!=0){
            queryWrapper.eq("catelog_id",catelogId).eq("attr_Type","base".equalsIgnoreCase(type)?1:0);
        }
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            queryWrapper.and((wrapper) -> {
                wrapper.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                queryWrapper
        );
        return new PageUtils(page);

//        if (catelogId!=0){
//            queryWrapper.eq("catelog_id",catelogId);
//        }
//        String key = (String) params.get("key");
//        if (!StringUtils.isEmpty(key)){
//            queryWrapper.and((wrapper) -> {
//                wrapper.eq("attr_id",key).or().like("attr_name",key);
//            });
//        }
//        IPage<AttrEntity> page = this.page(
//                new Query<AttrEntity>().getPage(params),
//                queryWrapper
//        );
//
//        PageUtils pageUtils = new PageUtils(page);
//
//        List<AttrEntity> records = page.getRecords();
//      List<AttrRespVo> respVos=  records.stream().map((attrEntity)->{
//            AttrRespVo respVo = new AttrRespVo();
//            BeanUtils.copyProperties(attrEntity,respVo);

            //1.设置分类和分组名称
//          if ("base".equalsIgnoreCase(type)){
//              AttrAttrgroupRelationEntity attrid = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
//              if (attrid!=null){
//                  AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrid.getAttrGroupId());
//                  respVo.setGroupName(attrGroupEntity.getAttrGroupName());
//              }
//          }
//            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
//
//            if (categoryEntity!=null){
//                respVo.setCatelogName(categoryEntity.getName());
//            }
//            return respVo;
//        }).collect(Collectors.toList());
//      pageUtils.setList(respVos);
//        return pageUtils;
    }

    @Override
    public AttrRespVo getAtrInfoId(Long attrId) {
        AttrRespVo respVo=new AttrRespVo();
        AttrEntity attrEntity = this.getById(attrId);
        BeanUtils.copyProperties(attrEntity,respVo);
        if (attrEntity.getAttrType()==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //1.设置分组信息
            AttrAttrgroupRelationEntity attrgroupRelation = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if (attrgroupRelation!=null){
                respVo.setAttrGroupId(attrgroupRelation.getAttrGroupId());
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupRelation.getAttrGroupId());
                if (attrGroupEntity!=null){
                    respVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }

            }
        }

        //2.设置分类信息
        Long catelogId=attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatelogPath(catelogId);
        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        respVo.setCatelogPath(catelogPath);
        if (categoryEntity!=null){
            respVo.setCatelogName(categoryEntity.getName());
        }


        return respVo;
    }

    @Transactional
    @Override
    public void updateAttr(AttrVo attr) {
        AttrEntity attrEntity=new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        this.updateById(attrEntity);
        if (attrEntity.getAttrType()==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //1.修改分组关联
            AttrAttrgroupRelationEntity attrAttrgroupRelationEntity = new AttrAttrgroupRelationEntity();
            attrAttrgroupRelationEntity.setAttrGroupId(attr.getAttrGroupId());
            attrAttrgroupRelationEntity.setAttrId(attr.getAttrId());
            Integer count = relationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
            //relationDao.update(attrAttrgroupRelationEntity,new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));

            if (count>0){
                relationDao.update(attrAttrgroupRelationEntity,new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));

            }else {
                relationDao.insert(attrAttrgroupRelationEntity);
            }
        }

    }

    /**
     * 根据分组id查找关联的所以基本属性
     * @param attrgruopId
     * @return
     */
    @Override
    public List<AttrEntity> getRelationAttr(Long attrgruopId) {
        List<AttrAttrgroupRelationEntity> entities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgruopId));
      List<Long> attrIds=  entities.stream().map((attr)->{
          return   attr.getAttrId();
        }).collect(Collectors.toList());
      if (attrIds==null || attrIds.size()==0){
          return  null;
      }
        Collection<AttrEntity> attrEntities = this.listByIds(attrIds);
        return (List<AttrEntity>) attrEntities;
    }

    /**
     * 获取但前分组没有关联的所有属性
     * @param params
     * @param attrgruopId
     * @return
     */
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgruopId) {
        //1.当前分组只能关联自己所属分类里面的所有属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgruopId);
        Long catelogId = attrGroupEntity.getCatelogId();
        //2.当前分组只能关联别的分组没有引用的属性
        //2.1当前分类下的其他分组
        List<AttrGroupEntity> group = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<Long> collect = group.stream().map(item -> {
            return item.getAttrGroupId();
        }).collect(Collectors.toList());
        //2.2这些分组关联的所有属性
        List<AttrAttrgroupRelationEntity> entities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
        List<Long> attrids = entities.stream().map(item -> {
            return item.getAttrId();
        }).collect(Collectors.toList());
        //2.3从当前分类的所以属性中移除这些属性
        QueryWrapper<AttrEntity> attrEntityQueryWrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
        if (attrids!=null&&attrids.size()>0){
            attrEntityQueryWrapper.notIn("attr_id",attrids);
        }
        String key= (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            attrEntityQueryWrapper.and(wrapper -> {
                wrapper.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), attrEntityQueryWrapper);

        PageUtils pageUtils = new PageUtils(page);
        return pageUtils;
    }


}